docs: def wait_for_path_blocking(path: pathlib.Path, timeout: int=30) -> None:
      """
      Waits up to ``timeout`` seconds for the path to appear at path
      ``path`` otherwise raises :exc:`TimeoutError`.
      """
      start_at = time.monotonic()
      while time.monotonic() - start_at < timeout:
          if path.exists():
              return
          else:
              time.sleep(0.05)
  
      raise TimeoutError(f"IPC socket file {path} has not appeared in {timeout} seconds")